How to hide keyboard in UITableViewController?

Question

I am building an app that contains a UITableViewController. In the VC, I put some text fields for accepting user input. I use a table view controller because it's easier to move the view up when the keyboard appears. See here for more info.

When I was learning how to hide the keyboard when the user taps somewhere else by watching one of thenewboston's videos, I was told to use

view.endEditing(true)

in the touchesBegan method.

I also found out how to use a swipe gesture recogniser so I could hide the keyboard when the user swipes down.

However, all of these are with normal view controllers. When I do this with a table view controller, nothing works! Both touchesBegan and UISwipeGestureRecognizer didn't work! When I swipe down or tap somewhere, the keyboard just stays there!

Why is this happening and how can I hide the keyboard in a table view controller?

EDIT:

The relevant code are all in a subclass of UITableViewController:

    override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {
    view.endEditing(true)
}


@IBAction func swipedDown(sender: UISwipeGestureRecognizer) { // This is connected to a swipe gesture recogniser
    view.endEditing(true)
}

I think that's how you normally do it, right? I tried this in a normal view controller and it worked. It just doesn't work in table view controllers.

Not really. The table view is probably preventing the gestures from working. — rmaddy
– rmaddy, Commented Jan 17, 2016 at 4:52

Ajay Kumar · Accepted Answer · 2016-01-17 05:21:05Z

3

If you want to override -touchesBegan:withEvent: for your UITableView, you will need to subclass UITableView.

touchesBegan:withEvent: is only sent to subclasses of UIView. You are implementing touchesBegan:withEvent: in your controller.So, it won't work...

You can solve this with UIGestureRecognizer like this -

let tap = UITapGestureRecognizer(target: self, action: Selector("handleTap:"))
tap.delegate = self
self.view.addGestureRecognizer(tap)

Then implement the handler -

func handleTap(sender: UITapGestureRecognizer? = nil) {
// handling code
 self.view.endEditing(true)
}

Now call handleTap() at relevant position.

edited Jan 17, 2016 at 5:21

answered Jan 17, 2016 at 5:03

Ajay Kumar

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2 Comments

Sweeper Over a year ago

Where should I put the first code snippet? The view controller?

Ajay Kumar Over a year ago

Yes in controller's viewDidLoad, also check, I have edited some code , as you are using tableViewController replace tableView.addGestureRecognizer(tap) with self.view.addGestureRecognizer(tap)

Myat Min Soe · Accepted Answer · 2017-10-06 13:46:53Z

3

You can add tableView.keyboardDismissMode = UIScrollViewKeyboardDismissMode.onDrag on viewDidLoad() function of your UITableViewController

override func viewDidLoad() {
    super.viewDidLoad()
    tableView.keyboardDismissMode = UIScrollViewKeyboardDismissMode.onDrag
}

answered Oct 6, 2017 at 13:46

Myat Min Soe

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Comments

Varun · Accepted Answer · 2016-01-17 05:00:25Z

1

By default UITableView handles all the gestures which cannot be overridden unless you add gestures on top of the tableView or handle scrollViewWillBeginDragging: delegate.

By using scrollViewWillBeginDragging: you can hide the keyboard. It'll be called only when the user scrolls. Touches and UIGestures won't work.

answered Jan 17, 2016 at 5:00

Varun

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Comments

jasonnoahchoi · Accepted Answer · 2016-01-17 04:41:21Z

0

You should add a gesture recognizer to your tableView.

let dismissTap = UITapGestureRecognizer(target: self, action: "dismissKeyboard:")
dismissTap.numberOfTapsRequired = 1
view.addGestureRecognizer(dismissTap)

and then in your dismissKeyboard selector:

func dismissKeyboard(recognizer: UITapGestureRecognizer) {
     view.endEditing(true)
}

answered Jan 17, 2016 at 4:41

jasonnoahchoi

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